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85694680 = 23511318959
BaseRepresentation
bin1010001101110…
…01100011011000
312222020202000001
411012321203120
5133414212210
612300422344
72060251501
oct506714330
9188222001
1085694680
1144410755
12248479b4
13149a5416
14b549ba8
1577cb03a
hex51b98d8

85694680 has 32 divisors (see below), whose sum is σ = 194529600. Its totient is φ = 33972736.

The previous prime is 85694669. The next prime is 85694689. The reversal of 85694680 is 8649658.

It is a self number, because there is not a number n which added to its sum of digits gives 85694680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85694689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4960 + ... + 13999.

It is an arithmetic number, because the mean of its divisors is an integer number (6079050).

Almost surely, 285694680 is an apocalyptic number.

It is an amenable number.

85694680 is an abundant number, since it is smaller than the sum of its proper divisors (108834920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85694680 is a wasteful number, since it uses less digits than its factorization.

85694680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19083 (or 19079 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 85694680 is about 9257.1421075837. The cubic root of 85694680 is about 440.8775187201.

The spelling of 85694680 in words is "eighty-five million, six hundred ninety-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 113 226 452 565 904 1130 2260 4520 18959 37918 75836 94795 151672 189590 379180 758360 2142367 4284734 8569468 10711835 17138936 21423670 42847340 85694680